Originally Posted by HoughMade
The only belt drive I have seen is GEBE.
I don't know how a belt drive would be easier on the spokes than friction. Sounds to me like it is the stress of the load, not the drive system. With that load, I would look past 12 ga spokes (many bikes come standard with 14 ga) and go with 11 ga or 10 ga....but that's me.
I will have to meet ya at the 49er some windy day... Those bugs will eat ya up. I like the 10 ga Idea and should look into that for power and durability.